<?php

namespace NoccyLabs\PulseAudio\Helper;

class Pacmd
{
    public static function call($command, array $args=[])
    {
        // assemble command lin
        $cmdl = array_merge([ $command ], $args);
        $cmdl = join(" ", array_map("escapeshellarg", $cmdl));
        
        echo "$ pacmd {$cmdl}\n";
        
        // call pacmd
        exec("pacmd {$cmdl}", $output, $retval);
        
        // handle errors
        if ($retval != 0) {
            throw new \RuntimeException("Failed to call pacmd. exitcode={$retval}");
        }

        // return output
        return $output;
    }

    public static function query($command, array $args=[])
    {
        $output = Pacmd::call($command, $args);

        $status = array_shift($output);
        // printf("[pacmd] %s\n", $status);

        $parser = new PacmdListParser();
        $output = $parser->parse($output);

        return $output;
    }        
}